REVENUES - Schedule of Accounts Receivable, Unbilled Services and Unearned Revenue (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Accounts receivable	$ 113.6	$ 156.5
Unbilled services	517.3	542.3
Less: allowance for credit losses	(41.2)	(39.3)	$ (31.7)
Total	589.7	659.5
Unearned revenue	$ 473.8	$ 353.3

Accounts Receivable And Contract With Customer, Asset, After Allowance for Credit Loss, Current

No definition available.

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- Definition

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

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- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

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- Definition

Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

+ References

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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